36results about How to "Sufficient energy supply" patented technology

The invention discloses a small waterplane area twin-hull ship type marine monitoring buoy platform which comprises two torpedo-shaped lower submerged bodies, an upper hull platform and a streamline strut, wherein the torpedo-shaped lower submerged bodies are placed underwater and provide most of buoyancy; the upper hull platform is above the water surface; the streamline strut connects the lower submerged bodies and the upper hull; fixed rudders for positioning are arranged at the rear parts of the lower submerged bodies; a multisection type streamline probe box which is connected to the lower end of the upper hull platform is arranged between the two lower submerged bodies; the side surface of the multisection type streamline probe box is provided with a small hole through which the water flows; the multisection type streamline probe box is set to be easy to separate from the upper hull platform under the impact of external force; each section of the streamline probe box is provided with an anchor bolt, each anchor bolt is fixedly connected with an anchor chain, and an anchor is connected to each anchor chain. The invention has the advantages of good sea area adaptability, small splashing area volume, strong wind and wave resistance, good stability, large load, large platform area, small resistance in waves, sufficient energy supply, good equipment expansibility, convenient maintenance, and the like.

The invention discloses a media access control (Media Access Control, MAC) mechanism for digital-energy integrated wireless sensor networks, which is applied to the field of wireless sensor networks and addresses the problems existing in the prior art; the invention introduces wireless digital-energy simultaneous interpretation technology , change the superframe structure of the traditional IEEE 802.15.4 protocol, optimize the GTS time slot allocation scheme of the wireless access point, and take the residual energy of the terminal node, the numerical difference between the two collected data before and after, and the validity period of the newly collected data as the judgment conditions. To guide the allocation of GTS time slots, the support vector machine algorithm of machine learning is introduced, and a learner model of support vector machine is obtained by supervised learning based on historical data, and the decision boundary value of the learner model is used as the benchmark for GTS time slot application. value, and the GTS slot application scheme is determined by comparing with the reference value.

A communication method and communication device based on NB-IoT and LoRa, which relate to the field of communication technology, are proposed in order to improve the transmission distance and reduce the operating cost of the wide-area information monitoring system. The master node judges whether it has received the LoRa frame data from the child node. If the master node receives the LoRa frame data from the child node, it will store it in the receiving buffer area, and read the frame data effectively according to the improved LRU algorithm. Store the valid data after reading into the sending buffer; report the data in the sending buffer to the server through NB-IoT, and judge whether it is connected; if it is connected, send the data in the sending buffer to the server; if it is not connected, return to the receiving starting point . The sub-node hardware system is used to realize sensor information collection and LoRa communication; the main node hardware system is used to realize LoRa communication, NB‐IoT communication, sensor information collection, and LCD screen display. The present invention can simultaneously integrate LoRa and NB-IoT communication protocols.

The invention relates to the technical field of new material processing, and discloses a diaphragm material for a power lithium battery, in which a polypropylene organic bottom film is impregnated in a dispersion, and the dispersion system contains carbonized corncob materials and nano-scale titanium dioxide, carbonized corncobs The material has a well-developed three-dimensional pore structure, which can be evenly dispersed into the titanium dioxide alcohol solution, and has strong adsorption performance. The polypropylene organic base film is further impregnated to process the diaphragm material of the power lithium battery. The diaphragm prepared by the present invention The material has high porosity, small pore size, good mechanical properties and temperature resistance on the surface, good thermal shrinkage, and high safety in use. When used with power lithium batteries, it has properties such as large capacity, long life, and stable and uniform output. Power equipment provides sufficient energy supply.